Registered

Well, this is an issue that I first noticed on Thursday. Once my tranny is good and warmed up the gears grind when I shift into 2nd gear. The rest of the gears are fine, and this only happens when I'm in 2wd. I am hoping that its the short throw shift kit I got from Marlin Crawler. So, I'll be converting the shifter back to stock to see if that fixes it. I'm keeping my fingers crossed that it does.

My Tranny is still under warranty, so that's not the issue. It's the possibility I have to pull it and take it over to the tranny shop. What a PITA!

The other issue I thought was fixed but its still there. My crawl box pops out of gear when it is disengaged (set to 1:1) and I have my 4.7 Case engaged and I'm going down a steep incline. I have to hold it to keep it from popping out.

Moderator

Well, this is an issue that I first noticed on Thursday. Once my tranny is good and warmed up the gears grind when I shift into 2nd gear. The rest of the gears are fine, and this only happens when I'm in 2wd. I am hoping that its the short throw shift kit I got from Marlin Crawler. So, I'll be converting the shifter back to stock to see if that fixes it. I'm keeping my fingers crossed that it does.

My Tranny is still under warranty, so that's not the issue. It's the possibility I have to pull it and take it over to the tranny shop. What a PITA!

The other issue I thought was fixed but its still there. My crawl box pops out of gear when it is disengaged (set to 1:1) and I have my 4.7 Case engaged and I'm going down a steep incline. I have to hold it to keep it from popping out.

The part about grinding into 2nd after warming up the tranny sounds like a syncro issue. If they are new (from the rebuild) it may just take some time for it to get "broken in". I had similar issues after I rebuilt my r151, it's gotten better the more I drive (well the more i shift in and out of each gear). Some of my gears are better than others, for instance, 1st and 2nd are happy, but 4th is still a little upset.. but only because I don't drive in traffic that much, so i'm not in/out of 4th very often. I spend most of my time in 1st/2nd/3rd on the trail.

Registered

That's what my Dad's theory is too. He but thinks that the short throw shifter kit might be allowing me to shift too quickly. I have noticed that when I slow down my shifts it doesn't grind as bad or at all.

Do you know how long it took you to "break in" those gears?

Obviously mileage is not the issue its the number of times I'm shifting.

With the risk of going off topic here, anyone else have any theories on the tranny and/or the crawl box?

I probably should start a new thread on this topic....

EDIT:
Just talked with the Tranny shop and they told me that grinding gears is not part of the normal break in process and I should bring it in. SIGH

Think I found a name for my rig: Murphy, as in Murphy's Law. But at the same time I don't want to add more fuel to the fire.

Registered

Redline is great stuff. I use MT85 in my nissan and it took the clunky/ grinding shifts away completely. There is a Redline dealer in Fort Collins, but i'm not sure about south. I'll second that recommendation.

Well had a great day on eagle rock, only had one problem where the coolant boiled but that's because I forgot to turn the fan back on. But no harm done. Here are some pics. After we got off the trail we went to the bikini car wash....lol.
Felix got to winch a jeep out that was having...

Here's the videos I got; I tried to break them up in short-ish times but that didn't always happen. Methinks I need another GoPro.
https://youtu.be/fazJxzZVXN0
https://youtu.be/owbfHdISQaw
https://youtu.be/hcKBToJYe94
https://youtu.be/IencH0VHN2o
https://youtu.be/pL5Wi5wjpbo...